The species Gonodactylus smithii is the only organism known to simultaneously detect the four linear and two circular polarisation components required to measure all four Stokes parameters, which yield a full description of polarisation. It is thus believed to have optimal polarisation vision. It is the only animal known to have dynamic polarisation vision. This is achieved by rotational eye movements to maximise the polarisation contrast between the object in focus and its background.
Mantis Shrimp can also punch so fast that it causes sonoluminescence which is the emission of light from imploding bubbles in a liquid when excited by sound.
The tetrachromacy in humans is a bit shit because the additional colour detecting cell picks up light between two other existing cell types - so they can see reddish-orangey-yellow stuff with much greater discrimination but don't help us with the new colour question.
I don't really understand primary colours as it relates to vision. Cone cells have a range of sensitivities that vary by person and colours are mapped to wavelengths.
So something reflecting radiation with a wavelength of 470 nanometres looks blue, and something reflecting radiation with a wavelength of 660 nm looks red. Yellow, orange etc still exist at specific wavelengths, but having an extra cone cell that is very sensitive red and green means you could better see the difference between orange at 600 nm and orange at 601 nm, and if you combined that light with blue at 470nm, you'd still get brown but you'd be much better at distinguishing between brown (600nm orange+blue) and brown (601nm orange+blue).
People already exist that can see more than the standard visible spectrum. It's called tetrachromacy
neat! I knew a lot of birds are tetrachromats, but I didn't know some people are too
mantis shrimp are cool
Mantis Shrimp can also punch so fast that it causes sonoluminescence which is the emission of light from imploding bubbles in a liquid when excited by sound.
The tetrachromacy in humans is a bit shit because the additional colour detecting cell picks up light between two other existing cell types - so they can see reddish-orangey-yellow stuff with much greater discrimination but don't help us with the new colour question.
So do those people have 4 primary colors? 6 secondary colors?
What color is 100% red, 100% green, 100% blue, 0% red-green?
I don't really understand primary colours as it relates to vision. Cone cells have a range of sensitivities that vary by person and colours are mapped to wavelengths.
So something reflecting radiation with a wavelength of 470 nanometres looks blue, and something reflecting radiation with a wavelength of 660 nm looks red. Yellow, orange etc still exist at specific wavelengths, but having an extra cone cell that is very sensitive red and green means you could better see the difference between orange at 600 nm and orange at 601 nm, and if you combined that light with blue at 470nm, you'd still get brown but you'd be much better at distinguishing between brown (600nm orange+blue) and brown (601nm orange+blue).
There's a song about that
Assuming? We can't even get a cool claim "yeah I can see the shiny dimension of things"
This sucks